1)   SemanticWorks 2008
Altova SemanticWorks 2008 is the ground-breaking visual RDF/OWL editor. Visually design Semantic Web instance docs, vocabularies, and ontologies then output them in RDF/XML or N-triples. It is the sensible way to put the Semantic Web to work for you.
RDF, OWL, RDF editor, OWL Editor, RDFS, OWL DL, OWL Full, RDF/XML, N-Triples, ontologies,

 2)   Altova Professional XML Suite 2006
The Altova Professional XML Suite is a comprehensive XML development toolset that delivers tremendous functionality at a special price. It includes Professional Editions of XMLSpy, MapForce, StyleVision, and SchemaAgent, plus the new SemanticWorks.
XML, XML editor, XML software, XML mapping, Schema editor, DTD editor, XSL editor, W3C Schema, DTD, XSL,